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Finding the Fourth Proportional to 369,348.76, 509,386.02 and 254,810.10

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Solution

The fourth proportional to 369,348.76, 509,386.02 and 254,810.10 is: 351,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,348.76 : 509,386.02 = 254,810.10 : x
  2. Step 2: Convert to fraction form
    369,348.76/509,386.02 = 254,810.10/x
  3. Step 3: Cross multiply
    369,348.76x = 509,386.02 × 254,810.10
  4. Step 4: Simplify right side
    369,348.76x = 129,796,703,649.46
  5. Step 5: Solve for x
    x = 129,796,703,649.46/369,348.76
  6. Step 6: Final answer
    x = 351,420.44

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.